Detrended fluctuation analysis and Kolmogorov-Sinai entropy of electroencephalogram signals

作者：Lim Jung Ho; Khang Eun Joo; Lee Tae Hyun; Kim In Hye; Maeng Seong Eun; Lee Jae Woo^*

来源：Physics Letters A, 2013, 377(38): 2542-2545.

DOI：10.1016/j.physleta.2013.07.034

• Electroencephalogram
• Detrended fluctuation analysis
• Hurst exponent
• Entropy

We measured the electroencephalogram (EEG) of young students in the relaxed state and in the state of the mathematical activities. We applied the detrended fluctuation analysis and Kolmogorov-Sinai entropy (KSE) in the EEG signals. We found that the detrended fluctuation functions follow a power law with Hurst exponents larger than 1/2. The Hurst exponents enhanced at all EEG channels in the state of mathematical activities. The KSE in the relaxed state is larger than those in the state of the mathematical activities. These indicate that the entropy is enhanced in the disorder state of the brain.

• 出版日期2013-11-15